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Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Beta W 7 A 1.0 was tested in Daphnia magna (water flea) over 48 hours in a static system according to OECD 202; 
the EC50 was found to be > 100 mg/L.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
100 mg/L

Additional information

Beta W 7 A 1.0 was tested in Daphnia magna (water flea) over 48 hours in a static system.

The concentration tested was 100 mg/L and a negative control (0 mg/L).

The tested concentration was present as clear solution. The test batch was

homogeneous. No particulate matter was observed.

Analytical monitoring was carried out. The values determined were in a range of +/- 10

% of the theoretical value.

In this 48-hour acute toxicity study of Beta W 7 A 1.0 the following immobility values

were determined:

EC0 (48h) = 100 mg/L

EC50 (48 h) > 100 mg/L

EC100 (48 h): not determined

In the control group no immobility was observed. The 100 mg/L group showed no

effect in comparison to the negative control.